Tony, thanks for the link, I wasn't even aware of it. Kevin, I apologize for missing your email earlier, and I owe you and the sigrok moderators an answer to the question about portability and reuse. When I get a chance I'll try to post an issue to your repo. My first concern is support for analog samples. Second concern is for continuous streaming where the device sends a stream of samples larger than the requested sample size and larger than the "max samples" reported by the device to support SW triggering on the host. That streaming needs to happen without the host continuously sending pull requests over and over because that wastes potential link bandwidth. My impression from SCPI devices is that every data chunk requires a separate pull, but I could be wrong.
Guy, thanks for the enthusiasm, but don't forget that Salae is USB2 so it has a fundamental streaming sampling advantage, so it still might be worth the extra $6. I kind of like to think of this project as "I bought a pile of PICOs and realized I needed a logic analyzer and/or scope". If you've got $10 or more burning a hole in your pocket, there are likely better options. All, I have managed to do windows builds of Pulseview and posted a link to a drop box repo on my pico-coder github page. On Fri, Apr 1, 2022 at 5:55 AM guy colin <guy.co...@gmail.com> wrote: > Well done Shawn! > > Now we are eager to see this pico pull request merged in the main branch. > As mentioned in Hackaday we can forget our 10$ saleae clone to move to a > more powerful pico! > > Regards > -- > Guy > > Le jeu. 31 mars 2022 à 12:22, Tony Abbey <tabbe...@gmail.com> a écrit : > >> Hi Shawn et al >> >> I see your Pico logic analyser has made Hackaday: >> >> >> https://hackaday.com/2022/03/02/need-a-logic-analyzer-use-your-pico/#comment-6452788 >> >> Well done! >> I guess the mods will come in rapidly now. >> >> Tony >> >> On Fri, 18 Mar 2022 at 04:44, Chris Dreher <chrisdre...@hotmail.com> >> wrote: >> >>> Very minor correction: HID *may* use CONTROL only transfers and >>> INTERRUPT IN/OUT is optional (HID does not use BULK). However, this is a >>> little off-topic from the main point of this discussion. >>> >>> -Chris >>> >>> ------------------------------ >>> *From:* Stefan Brüns <stefan.bru...@rwth-aachen.de> >>> *Sent:* Thursday, March 17, 2022 6:11 PM >>> *To:* sigrok-devel@lists.sourceforge.net < >>> sigrok-devel@lists.sourceforge.net> >>> *Subject:* Re: [sigrok-devel] New sigrok driver for homemade logic >>> analyzer >>> >>> On Donnerstag, 17. März 2022 19:41:19 CET arnyt...@seznam.cz wrote: >>> > S. W. This is cool! I was looking at the USB TMC class: https://www. >>> > tmatlantic.com/…919 >>> > ( >>> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.tmatlantic.com%2Fencyclopedia%2Findex.php%3FELEMENT_ID%3D13919&data=04%7C01%7C%7Cc43865cb7a514a16fef808da087faa9a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637831641697992798%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=ZB%2F0pa7WAdXHvRqf1QuNyP4puD3WWyCaZzawFWFFoVQ%3D&reserved=0 >>> ) >>> > >>> > In theory it should be much faster than CDC class because it uses BULK >>> > transfers insread of CONTROL transfers. Bulk transfers can have >>> multiple >>> > packets in the frame, >>> > so threoretically it should use most of the USB 2.0 FS bandwith, which >>> is 12 >>> > Mbit/s. >>> >>> USB CDC uses BULK transfers for the data as well, and INTERRUPT for >>> signaling >>> change of status lines. >>> >>> Only HID *may* use CONTROL only transfers (BULK IN/OUT is optional). >>> >>> Regards, Stefan >>> >>> -- >>> Stefan Brüns / Bergstraße 21 / 52062 Aachen >>> home: +49 241 53809034 mobile: +49 151 50412019 >>> _______________________________________________ >>> sigrok-devel mailing list >>> sigrok-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/sigrok-devel >>> >> _______________________________________________ >> sigrok-devel mailing list >> sigrok-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/sigrok-devel >> > > > -- > Guy COLIN > _______________________________________________ > sigrok-devel mailing list > sigrok-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sigrok-devel >
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